Temp controller

So I ordered a stc-1000 from a site after a super hot day about 3 weeks ago and realized I need to do something before summer actually comes. A week after the order I contacted them to ask when it will arrive, they said due to me being in an outlying area it will take longer. Another week goes by and I phone again and they have issues with stock and apparently the one they had was not working. So very frustrated, I asked for a refund, which I did receive. And now a week after that, this thing arrives. Anyone have any clue how it works? It's not an stc 1000, but I Ringder RC-116M. Diagram looks completely different from the stc. I need help to figure out whether this thing is worth the effort. It says it does have a cool and heat function.

The controller in the beginning of the post functions the same way as the stc, but can only do either heating or cooling control. Will see how just controlling the fan works out with this controller. Will get in touch otherwise to order the stc Andre. I will fell much safer having the heater controlled as well.